Sheet-applying machine



M. B. DISKIN. SHEET APPLYING MACHINE. APPLICATION FILED FEB. 20, 1919.

Patented Oct. 12, 1920.

3 SHEETSSAHEET 3.

INVENTOR. ym; is K n Y ATTORNEYS,

W) mass.-

MOSES B. DISKIN, OF NEW YORK, N. Y.

SHEET-APPLYING MACHINE.

Specification of Letters Patent. Patented Oct, 12, 1920.

Application filed February 20, 1919. Serial No. 278,158.

To all whom it may concern 7 Be it'known that I, Mosns B. DISKIN, acitizen of the United States, residing at New York, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Sheet- Applying Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to a machine for applying sheets or flapsto boxes, and the machine is particularly intended for use in pastingtissue paper or other sheets to cardboard or paper boxes, so as to provide flaps to extend over the mouths of the boxes for protecting thecontents thereof, although the machine can be used for other purposes,that is, for pasting sheets to other objects. I

One of the objects of the invention-1s to provide such a machine havingnovel means for receiving and holding a stack of sheets for receivingpaste and then receiving the box or object to which the uppermost sheetis attached.

Another object is to provide novel means for applying paste to thesheets.

A further object is to provide means for clamping down the sheets duringthe application of paste thereto, to prevent the displacement of thesheets.

A still further object is the provision 'of' novel means for pressingthe box or other object against the sheet to which the'paste is applied,so as to attach or paste themtogether firmly.

The invention also has for its object the provision of such a machinecomprising a novel assemblage and combination of the component elementsin order that the machine will be practical and efficient 1n operation,and so that'the machine can be adjusted for sheets and boxes ofdifferent sizes.

With the foregoing and other objects in I view which will be apparent asthe description proceeds, the invention resides in the construction andarrangement of parts hereinafter described and claimed, it beingunderstood that changes can be made within the scope of what is claimedwithout departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, whereinFigure 1 is a side elevation of the machine showing the parts inposition as when the paste is applied to the uppermost sheet.

Fig. 2 is a front-view thereof.

Fig. 3 is an enlarged plan view of the sheet receiving and holdingmeans, showingthe paste applying means in section.

Fig. 4 is a fragmentary elevation of the presser device for pressing thebox and sheets together.

Fig". 5 is a cross sectional detail taken on the line 5-5 of Fig. 4.

In carrying out the invention, there is provided a suitable frame 1, inwhich is mounted a driving shaft 2, and a pulley wheel 3 driven in anysuitable manner is rotatable on one end of the shaft 2 and is connectedthereto by means of a clutch 4 to operate themachine as desired by theoperator. The clutch 4 is connected by any suitable mechanism 5 with atreadle 6, in order that the operator can start and stop the machine atwill. The frame 1 carries a suitable table 7 on which the work is done.

The magazine for the sheets is located above the forward edge portion ofthe table 7, which is provided with a downwardly extending ledge Shavinga depending flange 9. Angular blocks 10, 11 and 12are seated on theledge 8 and against the flange 9.

Said blocks are provided with stems 13 to. extend rearwardly through alongitudinal slot 14: in the flange 9 and on which nuts 13' can bethreaded for clamping said locks in adjusted position. The blocks 12 areused as spacers or fillers between the end blocks 11 and theintermediate blocklO, and any numberof blocks 12 can be used accordingto the position of the blocks 11 and the distances thereof from theblock 10 according to the length of the sheets and boxes for which themachine is adjusted. By loosening the blocks 11', they can be slidlongitudinally according to the length of the sheet and box, and theblocks 12 can be removed and applied as needed. The stack of sheets 15is seated on the table 7 over the forward edge thereof and on the blocks10, 11 and 12. The magazine includes retaining fingers 16 pivoted to theblocks 11 and extending upwardly at an angle to one another, and raisedyieldingly by springs 17 tudinal slot 29 in the table 7 to permit ofadjustment according to the lengths of the sheets. readily adjusted forsheets of different sizes, as well as the blocks 11 carrying the fingers16. V r The end members 18 carry means for clamping the sheets down orholding the stack down during the application of paste, so that theuppermost sheet to which the paste is applied will not be displaced ortaken off of the stack by the return movement of the paste applyingmeans. Thus, vertical rods 21 are slidable in the members 18, andpresser feet or plates 22 are connected to the lower ends of the'rods21, and

work in slots 23 in the members 18., The feet 22 are preferably ofL-shape, as seen in Fig. 3, so as to extend forwardly and bear down onthe sheets near their forward edges adjacent to which the paste isapplied. EX: pansion coiled springs 24 surround the rods 21 and areconfined between the upper ends of the members 18 a'ndheads or members25 on the rods 21, so as toraise said rods when they are free to do so,and thus raise the feet 22 ofi of the sheets. In this way, the feet 22are normally raised out of the way off of the stackof sheets.

The paste applying means includes two. pairs of parallelogram arms 31 atopposite ends of the machine pivoted at vertically spaced pointstostandard 1 secured on the table 7, and said arms are swingableupwardly and downwardly,and vertical parallelogram links 29 are pivotedto the free ends of the arms 31 at the opposite ends of the machine andremain in vertical position as the armsare swung upwardly anddownwardly, and maintain'a parallelogram movement from the pasteapplyingine'ans. f;

vertically movable slide 30 is carried by each link 29 and has anupwardly projecting rod or stem 28 passing slidably through a cross bar33 which connects the links 29, Coiled expansion springs 28 aredisposedon the rods 28 between the bar 33 and slides 30 to move saidslides yieldingly downward, and nuts 30 are disposed on the uppertermmals of the rods 28 to limit their downward movement. A longitudinalrod 29 has its terminals secured to the slides 30 to move upwardly anddownwardly therewith, and a longitudinal row of paste applying blocks 35are mounted on the rod 39, each block being engaged on the rod near oneend, so that the block can be swung upwardly and downwardly. Theintermediate block 35 is The end members 18 can thusbe wider than theothers, and nuts 32 are threaded on the rod 29 at the opposite ends ofthe blocks 35 for clamping them together. When the nuts 32 are loosened,those blocks 35 beyond the ends of the sheets 15 can be swung upwardlyout of the way, as seen in Fig. 2, and the nuts 32 are then tightened toclamp the blocks in position. It will be noted that only the blocks 35which are 7 turned down will come into contact with the pasteand'sheets. Thus, by swinging the blocks 35 into and out of operativeposition, the paste applying means can be adjusted to the length of thesheet or strip of paste which is to be applied. 7

A paste pot or pan 60 is supported by and 7 vate the paste, and thepaste is thus applied to the active blocks 35, those that are turned upnot coming into contact with the roller.

The movement of the paste applying means is used to operate the feet 22,and for this purpose, blocks 34am mounted slidably 7 on the bar 33 andare held in adjusted pcsitions by means of set screws 34: carriedthereby. These blocks 34 have brackets 36 extending rearwardly and inwhich vertical rods21 are slidable. These rods 21 have collars 25 attheir lower ends to seat on the collars 25, and coiled expansion springs26 surround the rods 21, and are confined between the bracket 36 andcollars 25 to move the rods 21 downwardly with respect to the brackets,such downward movement being limited by nuts 27 on the upper terminalsof said rods. Thus, when the arms 31' are swung downwardly, the rods 21will move downwardly with the brackets 36, and the rods 21 will seat onthe upper ends or collars 25 and the rods 21. The further downwardmovement of the brackets'36 will compress the springs 26, thus forcingthe rods 21 downwardly against the tension of the springs 24:, and thusmoving the feet 22 downwardly until they come to rest on the stack ofsheets thus holding the uppermost sheet down firmly in place andpreventing it from being dislodged during the application ofthe paste.The uppermost sheet is thus held down in place during the application ofpaste thereto near its forward edge, and will also be held down duringthe initial upward movement of they paste applying means until same iswithdrawn from the sheet when the upward movement of the rods 21 willrelease the rods 21 and permit the springs 24 to again raise the feet22. This will prevent the uppermost sheet from being lifted off .of thestack by its tendency to adhere to the blocks 35. The blocks 34 can beadjusted according to the members 18.

The paste applying means is operated from the shaft 2. Thus, one of thearms 31 has a lever 37 connected by a link 38 with a lever 39 fulcrumedto the frame 1 and carrying a roller 40 bearing against a cam 41 securedon the shaft 2. The cam 41 swings the lever 39 in one direction to movethe paste applying meansdownwardly to apply the paste, and a spring 42raises the arms 31 as the cam 41 completes its rotation.

The box or object 43, after the paste is applied to .theuppermost sheet15, is then introduced over said sheet, as seen by dotted lines inFig. 1. The top of the box can pass over the forward portion of thestack of sheets and over the blocks 11, 12 and 10, to bring the edge ofthe top wall of the box over the forward edge of the uppermost sheet.This introduction of the box or object is done by hand when the pasteapplying means has been raised.

The presser device for applying pressure to the box or object embodies alongitudinal rock shaft 53 journaled underneath the table T behind theledge 8, and arms 44. pivoted, as at 45, tothe ends of the table 7. Eacharm 44 carries a transversely movable slide 46 having a rod or stem 47slidable through an ear 44 of the arm 44, and coiled expansion springs48 surround the arms 47 and are confined between the slides 46 and. ears44 to move the slides 46 downwardly.

Nuts 49 upon the upper terminals of the rods 4? limit downward movement.A longitudinal presser bar 50 has its terminals secured to the slides46, and is movable downwardly with the arms 44 to bear on the box orobject above the paste and press said box down firmly, thus pasting thebox and uppermost sheet together at the inside of the box adjacent tothe edge thereof. In order to prevent the bar 50 from turning in theslides 46, pins 51 extend upwardly from the bar 50 through cars 52extending from the slides 46. The arms 44 are normally swung upwardlyand rearwardly to 'move the bar 50 out of the way of the paste applyingmeans, as seen in Fig. 1, and when the arms 44 are swung forwardly anddownwardly, the bar 50 will seat on the box or object which has beenintroduced over the sheets, and it will be noted that the downwardmovement of the arms 44 will compress the springs 48 thus obtaining thedesired pressure and also a yielding movement of the presser bar ormember 50.

The arms 44 and shaft 53 have gear segments 54 meshing with one another,so that said arms will be rocked by the shaft 53, which is provided withan arm 55 connected by a link 56 with a lever 57 fulcrumed to the frame1 and having a roller 58 opposite to the roller 40 bearing against thecam 41.. The paste applying means and presser device are thus operatedalternately, so that after the paste is applied and the pasteapplyingmeans moved back or returned, the presser device is then broughtintofoperation for'pasting the box and sheet together. The presserdevice is returned by a spring59. V

In operation, the mechanism is started and stopped at will bycontrolling the clutch 4 through the. medium of the treadle 6, or thelike.

The paste applying means and presser device operate alternately, thatis, when one is moving'to active position, the other is moving back orreturning from active position. The paste applying means which isnormally in vertical position with the active blocks 35 seating on theroller 61, first moves forwardly and downwardly so that said blocksapply a strip of paste on the uppermost sheet of the magazine adjacenttothe forward edge thereof, and said paste applying means then returns,and during the interval, the operator introduces the box or object overthe fingers 16. The presser, device is then brought into operation, thearms 44 swinging forwardly and causing the presser bar 50 to press thebox or object down on the paste, so that the box and sheet will adhere.It will be noted that thedownward pressure on the box or object willswing the fingers 16 downwardly, so that they will not interfere. Then,when the arms 44 are raised, this perinitsthe box or object to bewithdrawn with the sheet that has been pasted tiereto, and the fingers16 can rise up again under the influence of their springs 17. Thisoperation is repeated, it merely being necessary for the operator tointroduce and remove the boxes or objects as the paste applying meansand presser device are moved away from the sheets, respectively. Theoperation is the same when the machine is adjusted for sheets and boxesof different lengths, as will be apparent from the foregoing.

Having thus described the invention, what is claimed as new is 1. Asheet applying machine embodying a table for supporting a stack ofsheets, blocks adjustably mounted at one edge of the table to assist insupporting the sheets, members adjustable on the table for holding thesheet in place, and yieldable means carried by said blocks forming onewall of a magazine for the sheets, and movable downwardly.

2. A sheet applying machine embodying a table for supporting a stack ofsheets,

blocks adjustably carried by the table atone edge to assistinsu-pporting the sheets, mem-' bers adjustable on the table for holdingthe sheets therebetween, and fingers pivoted to some of said blocks andextending upwardly at an angle to retain the sheets in place andyieldable downwardly to permit abox or object to be pressed down onthesheets over said fingers.- 1, V

3. Afsheet applying machine embodying a magazinefor a stack of sheets,paste applying means to and from the sheets to apply paste to'theuppermost sheet, normally raised means movabledownwardly to press downon, the stack, and means foryieldingly moving the last named meansdownwardly with the paste applying means when it con :tacts with theuppermost sheet.

4. A sheet applying machine embodying a magazine for a stack of sheets,paste applying meansmovable downwardly and upwardly to and from thesheets to apply paste to the uppermost sheet, spring-raisedmeans movabledownwardly to press down on the stack of sheets,'and yieldable meansmovable with the paste applying means to contact with and depress saidpressing means when the paste applyingemeans moves into and outof'contact with the uppermost sheet.-

5. A sheet applying machine embodying a magazine for astack of sheetsincluding a member forming one wall of the magazine, a rod slidablevertically in said member and having a portion to bear on the stack ofsheets, means for normally raising saidrod, paste applying means movableto and from the sheets toiapply paste to the uppermost sheet and meansfor depressing said rod when the paste applyingmeans moves into and outof contact with the uppermost sheet.

6. A sheet applying machine embodying a table for supporting a stack ofsheets, relatively adjustable members on the table for holding thesheets .therebetween, rods slidable vertically in said members andhaving means at their lower ends to bear on said sheets, means fornormally ralslng said rods,

paste applying means movable downwardly tively adjustable magazinemembers on the table for holding the sheets therebetween, rods slidablevertically in said members and having means at their lower ends to bearon the stack of sheets, means for normally raising said rods, theparallelogram device, paste applying means carried by said device tomove downwardly and upwardly into and out of contact with the uppermostsheet for applying paste thereto, relatively adjustable members carriedby said device, and spring depressed rods carried by the last namedmembers to seat on the aforesaid rods when the paste applying meansmoves into contact with the uppermost sheet.

' 8. A sheet applying machine embodying a magazine for holding a, stackof sheets, means for applying paste on the uppermost sheet, and apresser device for pressing a box or object on the uppermost sheet overthe paste, including rocker arms, springrpressed slides carried.thereby, and a presser bar ex, tending over the magazine to bear down onthe box or object and having its ends attached to said slides.

In testimony whereof I have signed'my name to this specification in thepresence of two subscribing witnesses. V

V r Y MOSES B. DISKIN.

Witnesses: SAMUEL J. RosEN,

MAX SCHWARTZ.

